Showing papers in "Energy Conversion and Management in 1989"

TL;DR: In this paper, a straightforward transient analysis of a single solar still in the presence of dye has been presented by incorporating the effect of the attenuation of solar flux with depth of water in the basin.

TL;DR: In this article, the authors describe the detail design and performance of a prototype, low cost and simple solar dryer coupled with a vertical flat plate collector chimney for drying 20 kg of field harvest high moisture paddy.

TL;DR: A simple analytical study of the multi-effect wick type solar still has been presented incorporating the effect of various parameters, viz, still length, water flow velocity, inclination of absorber, etc as discussed by the authors.

TL;DR: In this paper, the authors investigated the size distribution of soot particles inside the combustion chamber of diesel engines and found that the size of particles varies from 94 to 1000 A and that some particles have almost spherical shapes.

TL;DR: In this paper, a simple transient analytical approach has been adopted for developing an explicit expression for the water temperature of an indoor swimmingpool coupled to a panel of collectors, and the desired temperature for the indoor swimming pool can be achieved by the active method.

TL;DR: In this paper, an analytical study of the performance of the stationary-reflector/tracking-absorber (SRTA) solar collector with tubular absorber is presented, and the mathematical treatment and derived formulae are generalized for any rim angle and any absorber-toreflector diameter ratio.

TL;DR: In this paper, a procedure is described for developing a correlation for use in a simple method for predicting the monthly annual cooling load in single zone buildings, such as houses, and the model is derived and validated using hour-by-hour simulations for a number of different house types and locations.

TL;DR: In this paper, a vapour condensation heat transfer system based on acetone (b.p. 55°C) consisting of a sealed system in which two containers, one each in a biogas digester and solar pond, connected by a sloping pipe is suggested.

TL;DR: A comprehensive review on open cycle absorption cooling is presented in this article, where the authors have studied the feasibility of an open cycle cooling system both theoretically and experimentally, and they found that the former is better in performance, less expensive and simpler in technology.

TL;DR: In this paper, a chemical vapour deposition technique for growth of SnO 2 :Sb heat mirror coatings on the inner walls of long cover glass tubes for cylidrical solar collectors is reported.

TL;DR: In this paper, a simple straightforward transient analysis of the Khadi Village Industrial Commission (KVIC) biogas plant coupled with a flat plate collector through a spiral/coil type heat exchanger is presented.

TL;DR: In this article, the authors reviewed the alternative energies and research priorities in developing countries, with particular emphasis on Egypt and Sudan in northern Africa and Bangladesh, Indonesia, Jordan, Pakistan, Syrian A.R. in southwest Asia.

TL;DR: In this paper, an analytical study of an underground water heater integrated with a heat exchanger is presented for a typical cold day, namely 21 December 1985 and the yearly data of 1984.

TL;DR: The global solar radiation in Awka, located at lat 6.20°N and long 7.12°E has been measured using a Belfort actinograph on a continuous basis from November 1985 to May 1986.

TL;DR: In this paper, the optimum dimensions of finned tube bundles for installation in an existing cooling tower are determined, subject to certain practical constraints and for a given cost structure, and the influence of variations in the independent parameters are quantified.

TL;DR: In this article, the energy supply and supply prospects in developing countries, with particular emphasis on Egypt and Sudan in northern Africa, and Bangladesh, Indonesia, Jordan, Pakistan, Syrian A.R. and Yemen A. R. in southwest Asia, are reviewed.

TL;DR: In this article, a method for optimizing the thickness of insulation over various pipes carrying hot air at different temperatures so that the net savings are maximized is presented. But this method assumes that the total additional investment will be equal to the sum of the cost of insulation required for each of the pipes.

TL;DR: In this article, the electrical conductivity of the seeded (with K) combustion products of various gaseous fuel mixtures has been analytically evaluated when the fuel combinations are burnt in oxygen enriched air.

TL;DR: In this paper, the socioeconomic factors and energy utilization levels in developing countries, with particular emphasis on Egypt and Sudan in northern Africa, and Bangladesh, Indonesia, Jordan, Pakistan, Syrian A.R.

TL;DR: In this paper, a conceptual operation system of regenerative heat exchangers is proposed for minimizing the amount of combustion gas which mixes in the working inert gas, and experiments have shown that this mixing can be reduced significantly by evacuating and flushing heat exchanger after being heated by combustion gas.

TL;DR: In this paper, the authors present a methodology of normalization and the z-deconvolution process for linear and nonstationary problems on transient heat transfer in a single zone, modeled with the room weighting factors.

TL;DR: In this article, a generalized model for a forced circulation solar water heating system with storage tanks in series is presented in which the loss of heat through an insulation lagging is considered, and the periodic time variation of the intensity of solar radiation, as well as both the ambient air temperature and the temperature of cold water entering the first main tank, is taken into account.

TL;DR: In this article, a coal fired MHD disk generator in a combined cycle MHD/steam power generation system with a diffuser operating at sub-atmospheric pressure is proposed.

TL;DR: An input-output analysis of firewood plantations is attempted in this paper, where the inflows from free energy forms, exerted energy forms and non-energy forms, and outflows from energy products, nonenergy products and side benefits are evaluated in common energy units (kilocalories).

TL;DR: In this paper, the influence of coal slag on the electrical characteristics of a large scale Faraday MHD generator was analyzed using an equivalent circuit for a space element in the Faraday channel and a slag layer element.

TL;DR: In this article, the authors deal with a two-dimensional time-dependent numerical simulation of the growth of discharges in MHD generator boundary layers and show that the voltage-current characteristics in a boundary layer have positive resistance characteristics for small currents and negative for large ones.

TL;DR: In this paper, the characteristics of electrical discharge in potassium seeded argon were investigated experimentally, using a cylindrical glass tube filled with low pressure argon, and a current was applied from a.c.d. power supply.

TL;DR: In this article, a theoretical expression for the periodicity of the external agency that stimulates variation in the energy defining parameter of the circuit is derived, and practical applicability of systems that involve photon induced amplification is also discussed, in view of their conversion efficiency and production cost.