CR4 - Forum: Sustainable Engineering

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Discussion Threads

Create Date / Rating Title / Poster	Last Post	Comments	Views
06/06/2013 6:44 PM Nuclear Reactor Cores Disposal or Re-use by ronseto	06/12/2013 1:27 PM by rashavarek	69	564
05/31/2013 12:33 PM Solar Panel Inverter by oseriff	06/04/2013 10:47 PM by leveles	10	123
05/23/2013 1:08 AM Staple Remover by txmedic3338 Pathfinder Tags: staples screws magnets oak restoration scrapers me	06/07/2013 8:51 AM by bob c	55	706
05/03/2013 9:56 PM Heidi Doe De Doe De Doe Here We Go Again! by Heidi Etchey Pathfinder Tags: Heidi Doe de Doe/ Adams	05/23/2013 4:07 AM by PWSlack	13	322
04/29/2013 4:15 PM Water Resource Management in India by Shyam	05/30/2013 7:17 AM by Shyam	22	226
04/29/2013 4:11 PM For All You Windpower Folks Out There... by RAMConsult	04/30/2013 3:44 AM by Anonymous Poster	3	265
04/27/2013 11:31 PM Energy Management Improvement Projects by msalaheldin Pathfinder Tags: Energy Management System Improvement Projects	04/30/2013 1:29 PM by msalaheldin	11	109
04/25/2013 2:59 AM Relating Environmental Degradation / Poor Rains & Architecture by xyz Pathfinder Tags: Civil sustainable	05/13/2013 5:37 PM by truth is not a compromise	7	117
04/22/2013 8:57 AM Happy Earth Day! (Google Doodle) by SavvyExacta Pathfinder Tags: earth day google doodle	04/28/2013 3:36 PM by Drew K	14	139
04/20/2013 12:44 PM VWAT Vs HAWT? by db08vic Pathfinder Tags: VAWT Vs?	04/22/2013 5:58 AM by Andy Germany	20	354
04/17/2013 1:08 PM Look Ma, No Blade Windmill! by Drew K	04/20/2013 10:19 PM by redfred	28	480
04/09/2013 12:19 AM Like Boiler Injector But Air-to-Air by Lutherman Pathfinder Tags: ambient heat compressed air jet pump thermal compressor thermocompressor	04/13/2013 1:57 PM by tcmtech	28	177
04/08/2013 10:43 AM Injection of Exhaust Into Subsoil by HiTekRedNek	04/14/2013 4:48 PM by tcmtech	34	370
04/04/2013 3:35 AM Brine Chiller for Room Air Conditioning by selvamshanmugam	04/04/2013 9:29 PM by Fredski	7	51
04/02/2013 9:32 AM Wind Turbine Blade by mylifeblike Pathfinder Tags: "blades" "mechanical engineering" "sustainable energy" "wind turbine"	04/03/2013 9:37 PM by BruceFlorida	27	357
03/18/2013 8:52 AM Pressure to Heat Conversion for Bathroom Water Heating by John Ken	04/04/2013 11:03 AM by K_Fry	14	252
03/18/2013 5:16 AM Cold Fusion Again by jdretired Pathfinder Tags: cold fusion	03/23/2013 3:04 PM by energyconversion	6	85
03/09/2013 4:12 PM 2mw Wind Turbine Gearbox and Generator Motor by designerman	03/11/2013 2:27 PM by jack of all trades	12	89
03/04/2013 8:43 PM Req. Consultancy: Electricity Generation Using CSP (Concentrated Solar Power) by SSENERGY	03/04/2013 9:46 PM by Tornado	1	53
03/04/2013 12:19 PM Circulating Solar Heated Water by Gavilan	03/05/2013 10:27 AM by Gavilan	14	258
03/02/2013 8:27 PM Septic Tank Set Up to Run Appliances by dave Lonesberry	03/06/2013 11:03 AM by Brave Sir Robin	15	405
02/24/2013 7:33 PM Flip Flop to Better Distribute Slow Water to Plants by gaiatechnician Pathfinder Tags: greenhouse IRRIGATION Water	05/14/2013 1:41 AM by gaiatechnician	7	167
02/13/2013 10:05 AM Natural Gas in Home by Gagauz	03/01/2013 10:58 PM by chtank	7	209
02/04/2013 10:51 PM Inhouse Reuse of Used Mineral Wool by Jithin	02/21/2013 5:24 AM by catisred	5	64
01/31/2013 5:09 AM Flowing Water Though Copper As a Refrigerant by 200mpg Pathfinder Tags: cooling refrigeration copper cold hot heat exchang	03/03/2013 2:34 AM by truth is not a compromise	55	476
01/31/2013 12:19 AM Australia Natural Gas Liquefaction by sadibo Pathfinder Tags: australia liquefaction energy	02/01/2013 1:31 AM by MUKULMAHANT	16	179
01/25/2013 11:04 PM Microhydro Project by Lafleur	02/24/2013 3:16 AM by DogOfWar	42	342
01/18/2013 5:42 PM GIS Practical Apps by ci139	01/19/2013 2:53 PM by Anonymous Poster	2	103
01/14/2013 5:36 AM Biogas Compressors into LPG Cylinder by John Afari Idan	01/14/2013 7:28 AM by JPool	3	76
01/14/2013 12:43 AM Designing Agrowaste Composite Boards by pvhramani Pathfinder Tags: Agrowaste Composite Compsoite Panels Thermoset Composites	03/09/2013 11:02 PM by pvhramani	4	119
12/29/2012 4:31 AM Solar Energy by Ali Abdalla	12/29/2012 9:51 PM by RAMConsult	3	115
12/24/2012 12:47 AM Metal Recovery From Slag by Dhiren Gandhi Pathfinder Tags: steel slag	03/02/2013 11:01 PM by fixitorelse	3	58
12/21/2012 8:52 AM Making Fuel from Waste Plastic by artsmith	01/04/2013 11:03 PM by P20fan	42	493
12/18/2012 2:18 AM KISS (Keep It Simple Stupid) Solar Water Pumping by kvsubramanyam	01/23/2013 10:48 PM by 129CBRider	19	341
12/05/2012 6:11 PM PV System Putting Power Back to the Grid by tbriggs	12/19/2012 9:13 AM by Gadepalli Subrahmanyam	11	342
11/28/2012 12:30 PM What Role Do Hydraulic Systems Play in Renewable Energy by kennynabb6 Pathfinder Tags: renewable energy Naturals	12/13/2012 8:01 AM by kennynabb6	35	220
11/12/2012 7:09 PM Web-site-Global Water Crisis by agua_doc	12/07/2012 10:25 AM by Gavilan	4	92
10/14/2012 1:12 AM Dwelling Caves by az native Pathfinder Tags: future living in caves	10/22/2012 4:29 AM by tomstephens	27	406
10/09/2012 9:06 PM Salt River Project Starts a 19 Megawatt Solar Plant in Queen Creek, AZ by lyn	10/24/2012 9:57 AM by durtieduck	12	182
10/01/2012 7:44 PM Solar Thermal Energy System in Mojave Desert by Jay_ Pathfinder Tags: Solar Thermal Energy Power Renewable Mojave	11/26/2012 10:18 AM by Jay_	10	314
10/01/2012 3:13 PM Micro Hydro AC/DC Generator by tomstephens Pathfinder Tags: AC/DC generation	10/19/2012 8:30 PM by czgut	24	481
09/30/2012 10:55 AM Low Pressure Water Distillation. Why is it Not Used More? by tcmtech	06/14/2013 9:24 PM by isloorkar	42	643
09/29/2012 11:08 PM Is It Possible to Make Hydrogen from Seawater? by dijeferidu	10/03/2012 3:51 PM by snatr	19	567
09/29/2012 10:16 PM Chicken, Hydrogen Tanks and Fuel-Cells by bett4haze	09/30/2012 12:39 AM by Tornado	2	67
09/27/2012 5:08 PM Is Lamp Recycling a Hoax? by NotUrOrdinaryJoe Pathfinder Tags: environmental process green process Lamp recycling	10/01/2012 1:29 PM by davlamb	13	339
09/27/2012 8:23 AM Domestic Waste and Recycling Patterns Across the CR4 Readership by PWSlack	10/28/2012 7:29 AM by tomstephens	60	354
09/16/2012 11:03 PM Fresh Efficient Nuclear Technology by SolarEagle Pathfinder Tags: nuclear power EM2	09/20/2012 2:59 AM by Gwen.Stouthuysen	8	285
09/12/2012 10:10 AM Open Source Tracking Solar Concentrator Tutorials Finished by sugarandfat Pathfinder Tags: open source solar concentrator tracking recycled	09/26/2012 1:37 AM by malar	11	204
09/10/2012 3:33 AM Roof Structure for Dome Roof Tanks by ashishpvnit	10/09/2012 9:13 AM by Anonymous Poster	19	353
09/06/2012 12:35 AM Airlift Powered Microhydro Turbine by coolEL	10/19/2012 8:50 PM by czgut	7	124
08/30/2012 2:22 AM Green After War by mahmoudkhuli Pathfinder Tags: green after war	09/01/2012 6:14 PM by mike k	7	83
08/16/2012 11:49 AM ISDN (Radio Broadcasting) by Gendo Pathfinder Tags: ISDN	08/20/2012 4:27 AM by Gendo	9	131
08/11/2012 6:46 PM Recycled Gum by passingtongreen	08/12/2012 12:53 AM by Hendrik	3	99
08/11/2012 5:51 AM Standard About Installtion of Transformer by hungmk86	08/11/2012 9:48 AM by lyn	1	80
08/08/2012 1:42 PM Bicycle Generator by swimswam Pathfinder Tags: bike generator energy efficiency middle school science sustainability	08/18/2012 2:12 AM by Clintb32	29	446
08/06/2012 8:53 AM Wind Power by Anonymous Poster	11/16/2012 2:46 PM by czgut	3	71
07/26/2012 11:19 PM Gravitational Vortex Power Demo by gaiatechnician	07/29/2012 8:47 PM by gaiatechnician	4	217
07/22/2012 2:25 PM Contribution of Refrigerant Choice to Efficiency of a Refrigeration System by RutherfordEng Pathfinder Tags: carbon dioxide COP refrigerants refrigeration	08/10/2012 6:46 PM by vicini	13	212
07/18/2012 10:31 PM Is it Possible to Generate 3 Fuels from the Same Algae? by dijeferidu Pathfinder Tags: algae automotive biodiesel biofuels chemical ...	07/21/2012 1:04 AM by dijeferidu	13	315
07/16/2012 11:51 PM Natural Refrigerants and Carbon Dioxide by RutherfordEng Pathfinder Tags: carbon dioxide climate change global warming ozone layer r744 ...	07/23/2012 1:34 AM by Tornado	3	139
07/13/2012 8:26 PM Wind Turbine - 3 Blade Horizontal Or Vertical Squirrel Cage? by Satcom-Bill Pathfinder Tags: Squirrel cage wind turbine	08/16/2012 12:25 AM by 129CBRider	36	847
07/13/2012 2:38 PM Waste of Excess Solar Power by Guest1947 Pathfinder Tags: Solar Power usage	07/22/2012 1:25 AM by RAMConsult	22	289
07/09/2012 5:25 PM Wood Consumption by mortzs Pathfinder Tags: wood consumption	07/14/2012 4:00 PM by mortzs	22	235
07/04/2012 2:03 AM Energy Management by shree	07/05/2012 1:06 AM by rcapper	1	83
07/01/2012 8:12 PM Going Green - Something to THINK about by Greengoneby Pathfinder Tags: Southwest Windpower	07/02/2012 11:31 PM by Greengoneby	4	78
07/01/2012 2:17 PM Solar Heating an Above Ground Pool by ronwagn Pathfinder Tags: heater heating Pipe pool solar ...	07/03/2012 1:01 PM by phoenix911	29	321
06/28/2012 10:21 AM Technician by lesdon2000	06/29/2012 8:24 AM by jesw55	4	51
06/24/2012 12:05 AM Garbage Disposal by Anonymous Poster	06/26/2012 2:53 PM by jack of all trades	10	110
06/23/2012 9:42 PM Freeing Energy From The Grid ~ and More by passingtongreen	06/23/2012 10:27 PM by SolarEagle	1	98
06/19/2012 3:54 AM Denmark Pushes Through First-Ever European Union Energy Efficiency Law by PWSlack	06/25/2012 11:47 AM by xanasax	4	116
06/13/2012 2:14 AM Forest Fire Extinguishing by az native Pathfinder Tags: forest fire new approach	06/30/2012 3:25 PM by jt	23	242
06/12/2012 3:38 AM My Lean-Away Greenhouse. (Not Lean-To) Some Surprising Advantages. by gaiatechnician	07/03/2012 5:14 PM by gaiatechnician	21	391
06/10/2012 11:34 PM Solar Aircondition by jagdish oberoi	06/11/2012 12:00 AM by lyn	1	96
06/03/2012 6:26 PM Solar Panel Battery by beyondlimit_262	07/10/2012 12:23 PM by jerrys	10	333
06/02/2012 7:43 AM Super Battery Bank by JOHN H VAN ALLEN Pathfinder Tags: 2volt cells in battery strings	06/05/2012 8:38 AM by PeterT	13	410
05/23/2012 6:04 AM Clean-Tech Sustainable Mass-Production Technology by pvhramani Pathfinder Tags: Clean-Tech Mass-production Clean-Technology sustainable engineering	07/15/2012 7:18 AM by kennynabb6	5	126
05/22/2012 4:41 PM Renewable Energy for Electricity by esbony	06/21/2012 11:49 PM by WoodwardDL	23	281
05/14/2012 2:50 AM Bearing Creapage Preload of Bearing Wind Turbine by anees Pathfinder Tags: wind turbine bearing	05/14/2012 2:50 AM by anees	0	56
05/10/2012 12:18 PM Nice Biodigester System, and Politics of Use by ronwagn Pathfinder Tags: biodigester biogas sewage	05/11/2012 11:57 AM by Passerby	12	167
05/09/2012 6:30 AM The New LED Technology And Old Habits For Home Lighting Don't Mix by nikolay	05/11/2012 7:58 AM by micahd02	17	360
05/03/2012 3:10 PM Solar Panel Production Advice by spacecannon	05/04/2012 10:50 PM by spacecannon	8	351
05/01/2012 4:47 PM Energy From the Atmosphere by PAPADOC	06/29/2012 4:13 AM by snatr	64	642
04/29/2012 3:20 PM Energy Audit by diagon123 Pathfinder Tags: energy audit sustainable	07/26/2012 3:52 PM by BobbieADaley	10	159
04/25/2012 10:58 AM Maximum Distance for Solar Mirror by az native Pathfinder Tags: mirrors solar energy	10/21/2012 11:49 AM by czgut	14	222
04/23/2012 3:50 AM Harmonic 3 in Photovoltaic Application by fred-BLS Pathfinder Tags: photovoltaic ' 250kVA ' solar ' solar farm '	04/27/2012 12:27 AM by RAMConsult	1	43
04/07/2012 11:52 AM Is it Normal That I'm Not frustrated? by az native Pathfinder Tags: hydrogen production sail catamaran	04/07/2012 2:37 PM by kramarat	8	93
03/30/2012 8:36 AM Will (Lack Of) Water Be Our Undoing? by kramarat Pathfinder Tags: Global water shortage	07/16/2012 3:49 PM by drmilr	140	464
03/28/2012 9:44 AM Solar panels and eolic systems for commercial use by Frank-Jazz	03/28/2012 1:36 PM by SolarEagle	1	71
03/24/2012 6:45 AM District Heating and Cooling Based on Open Loop Geothermal by TreesPete Pathfinder Tags: Open Loop Geothermal District Heating and Cooling	04/15/2012 5:16 PM by CONWAYMECH	7	165
03/23/2012 8:01 AM Fiber Optics For Lighting? by kramarat Pathfinder Tags: Lighting with fiber optics	09/05/2012 9:16 PM by kevinle	39	372
03/19/2012 6:00 AM Energy Free Power Generator - HOJO MOTOR by vijaydongare@yahoo.co.in Pathfinder Tags: ENERGY FREE POWER GENERATION ?	03/25/2012 11:39 AM by DVader1000	6	160
03/14/2012 7:38 PM Where are the New Energy Sources? by ronseto Pathfinder Tags: electricity lightning	04/03/2012 7:41 PM by ronwagn	128	755
03/10/2012 10:19 AM Physical Meaning of Weibull Function by mansoor_vm	03/10/2012 10:29 AM by lyn	1	77
03/08/2012 6:19 AM What is Your Definition of "Green" vs "Sustainable" by Openandinterested	07/18/2012 3:02 PM by WJMFIRE	37	370
03/03/2012 12:16 PM Conservation by blocko	03/04/2012 7:21 PM by TVP45	7	123
03/03/2012 4:44 AM Controlled Use of Geothermal Energy From Volcanic Lawa by pritam Pathfinder Tags: geothermal energy lawa valcano	03/06/2012 9:10 AM by ci139	22	192
02/28/2012 9:46 PM Hot Water with Hydro by lighthasmass Pathfinder Tags: hydro hydronic microhydro radiant floor	03/04/2012 10:49 AM by Far	22	277
02/26/2012 1:55 PM Open Source Civilization Starter Kit by ronwagn	03/21/2012 8:06 AM by artbyjoe	13	314
02/22/2012 7:11 PM Hydro Power for Trout Hatchery by awdturbo04 Pathfinder Tags: Hydro Power small trout pond kaplan vertical turbi	02/27/2012 6:46 AM by irelandeng	9	236
02/16/2012 7:00 AM Hydro Generator Setup by Basco	03/30/2012 10:14 PM by czgut	19	343
02/02/2012 8:51 AM Search for the Salvaged (Liberty Engines) by EkoNation	02/02/2012 2:08 PM by SolarEagle	3	106

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