This paper presents a transient behaviour model for a single-glazed hot box type solar cooker which enables the temperatures of various elements of the cooker to be predicted. The experimental results conform well with the theoretically predicted values. In an attempt to establish a simple...

Natural convection losses between an absorber plate and the cover glazing for different gap sizes and at different plate temperatures have been predicted theoretically by various empirical correlations developed by McAdams,4 Mikheyev,3 Tabor,5 Buchberg et al.6 and Hollands et al.7 The free...

Indoor test methods for solar collectors are widely accepted and recommended by ASHRAE. The development of a solar simulator for indoor testing and the certification procedure for photo-thermal solar devices is discussed in this paper. The system consists of 14 quartz halogen lamps and provides...

The results of a comparative study of the steady-state approach and the periodic analysis as applied to the air heater are presented. For the periodic analysis, the meteorological data are represented by a Fourier series. The periodic analysis is carried out by taking half-hourly and hourly...

In this paper an expression for the accurate computation of the overall heat loss coefficient, UL--including front, edge and rear losses--from a solar flat-plate collector has been derived. This expression is used and values of overall heat loss coefficients and overall collector efficiencies...

An analysis is presented for the performance of an inexpensive sand collector for solar energy which has been validated experimentally. The collector consists of a plane network of polythene pipes buried in a sand mass which is kept in a wooden case, the top surface of the sand being fixed by...

This paper presents an analysis for the reduction of the heat flux that occurs by constant flow water in a network of pipes buried in a roof. An air gap is introduced into the roof to achieve maximum thermal load levelling. A periodic solution of the one-dimensional partial differential equation...

In this communication, an experimental study of inverted absorber solar still (IASS) and single slope solar still (SS) at different water depth and total dissolved solid (TDS) is presented. Experiments are conducted for the climatic condition of Muscat, Oman. A thermal model is also developed...

In this paper, a study is carried out to evaluate the annual thermal and exergy performance of a photovoltaic/thermal (PV/T) and earth air heat exchanger (EAHE) system, integrated with a greenhouse, located at IIT Delhi, India, for different climatic conditions of Srinagar, Mumbai, Jodhpur, New...

Building integrated photovoltaic thermal (BIPVT) system has the potential to become a major source of renewable energy in the urban environment. In this paper, the system has been used as the roof top of a building to generate higher electrical energy per unit area and to produce necessary...