摘要:

The case for a renewable energy strategy which helps sustain life, peace and certain development, is argued, based on the premise that: Fossil fuel reserves are limited to perhaps the next generation: That burning fossil and nuclear fuels causes pollution with potentially catastrophic biological and geophysical consequences: and That conflict may arise over scarcity of fossil fuels and selective ownership of nuclear power. The relative capacities, social and environmental benefits and costs of the alternatives are compared. What architects and engineers might do to promote renewables is proposed.

ISSN:0143-0750    

DOI:10.1080/01430750.1997.9675261

出版商:Taylor & Francis Group    

年代:1997

数据来源: Taylor

摘要:

The objectives, methodology and results of a pilot survey of urban households using box type solar cookers in Delhi are briefly described. Also included are the suggestions of the users for improving the acceptability of the solar cookers.

ISSN:0143-0750    

DOI:10.1080/01430750.1997.9675262

出版商:Taylor & Francis Group    

年代:1997

数据来源: Taylor

摘要:

In this communication, an energy balance equation in terms of design and climatic parameters has been written for each component of a regenerative active solar distillation system. An analytical expression for the water and the condensing cover temperatures, the hourly yield and the flowing water temperature has been derived. Numerical computations have been carried out for a typical day in Delhi and it has been inferred that the daily output is increased significantly due to nocturnal production of distilled water.

ISSN:0143-0750    

DOI:10.1080/01430750.1997.9675263

出版商:Taylor & Francis Group    

年代:1997

数据来源: Taylor

摘要:

In this paper the authors have presented a review, analysis and computer modelling of desiccant based hybrid air-conditioning (A/C) cycles for typical hot and humid conditions. Three hybrid cycles based on solid desiccant dehumidifier (viz. ventilation/condenser, recirculation/condenser and ventilation/heat exchanger cycles) have been evaluated and compared in performance with a conventional vapour compression A/C system. Computer modelling and analysis is based on dehumidifier performance data and the air psychrometric properties data correlations. Typical performance results in parametric variations for less and more humid conditions prevailing in Indian cities are presented.

ISSN:0143-0750    

DOI:10.1080/01430750.1997.9675264

出版商:Taylor & Francis Group    

年代:1997

数据来源: Taylor

摘要:

A more realistic cycle model is established for discussing the performance of the Stirling heat engine with regenerative losses. The power output is adopted as an objective function for optimisation. The maximum power output and the corresponding efficiency of the Stirling heat engine are derived. The effect of regenerative losses on the efficiency at maximum power output is expounded. The times of four processes in the Stirling cycle are allotted optimally. Some new conclusions are obtained.

ISSN:0143-0750    

DOI:10.1080/01430750.1997.9675265

出版商:Taylor & Francis Group    

年代:1997

数据来源: Taylor

ISSN:0143-0750    

DOI:10.1080/01430750.1997.9675266

出版商:Taylor & Francis Group    

年代:1997

数据来源: Taylor

ISSN:0143-0750    

DOI:10.1080/01430750.1997.9675267

出版商:Taylor & Francis Group    

年代:1997

数据来源: Taylor

ISSN:0143-0750    

DOI:10.1080/01430750.1997.9675260

出版商:Taylor & Francis Group    

年代:1997

数据来源: Taylor