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Showing papers in "Energy Conversion and Management in 1982"


Journal ArticleDOI
TL;DR: In this article, a review of reduction of heat flux through the roof of a building by open evaporation of water over the roof is presented, where a comparative study of (i) roof pond, (ii) spray cooling/gunny bags and (iii) moving water over roof system is presented.

84 citations


Journal ArticleDOI
TL;DR: In this paper, a theoretical calculation of the degradation of heat in stratified thermocline storage has been carried out based on a conduction model, and the results indicate that heat conduction through the insulation to the ambient can be a larger loss mechanism than conduction across the thermocine, except in large diameter tanks with very heavy insulation.

71 citations


Journal ArticleDOI
TL;DR: In this paper, a new perspective on the use of Rankine cycles as applied to thermal energy from industrial waste heat and renewable sources is presented, which shows that Rankine cycle can efficiently and in a cost-effective manner convert waste energy to power, heat pumping and cogeneration.

46 citations



Journal ArticleDOI
TL;DR: In this paper, an experimental and analytical study of the time-dependent thermal stratification that arises in a water body due to the discharge of thermal energy into it has been carried out in detail.

28 citations


Journal ArticleDOI
TL;DR: In this paper, a detailed study of the module, the glazing, glazing supports and the insulation is done, and a theoretical analysis of the thermal performance of the SSP is done by making use of the Hottel-Willier-Bliss model for the flat plate collectors.

25 citations


Journal ArticleDOI
TL;DR: In this article, a low-cost design solar still is described and performance data are presented, which eliminates the need for support or side-walls, as required in most conventional solar still designs.

23 citations


Journal ArticleDOI
TL;DR: In this article, statistical presentations of solar radiation data from three major stations in Peninsular Malaysia are given in several ways that will be useful in the design and performance study of solar energy conversion devices.

22 citations



Journal ArticleDOI
TL;DR: In this paper, a transient analysis of a solar water heating system with forced circulation is presented, where two modes of hot water retrieval have been taken into account viz direct from the tank and through a heat exchanger placed in the tank.

16 citations


Journal ArticleDOI
TL;DR: In this article, the authors presented a simplified transient analysis of a forced-circulation solar water heating system with a heat exchanger in the collector loop, considering two modes of hot water withdrawal viz constant flow and constant collection temperature.

Journal ArticleDOI
TL;DR: In this paper, an analysis of the performance of an inexpensive integrated solar collector and storage system is presented, where the flow of fluid and heat capacity of the storage material in the container is considered simultaneously and an evaluation is made for the resulting outlet fluid temperature for various flow rates and materials by solving the Fourier heat conduction equation with appropriate boundary conditions in different regions.

Journal ArticleDOI
TL;DR: In this article, the feasibility of energy storage via refrigerant mass storage within an absorption cycle heat pump with simulated time dependent generator heat input was evaluated for a typical winter day in Melbourne (Australia).

Journal ArticleDOI
TL;DR: In this article, a single tube with a number of thermocouples is used for temperature measurement and the overall heat transfer coefficient obtained is about 10 Kcal/m2h deg which implies that heat transfer through the powder bed is a controlling step.

Journal ArticleDOI
TL;DR: In this paper, the feasibility of the fully ionized seed concept in a full-scale MHD generator has been investigated and the results show that the seed fraction and the external load fluctuation must stay within ± 5% and ± 3%, respectively.

Journal ArticleDOI
TL;DR: In this paper, an open cycle gas turbine with a heat exchanger and its modifications have been studied, and an economic analysis per unit power has been done to define the superiority regions of the systems studied on various ranges of power output.

Journal ArticleDOI
TL;DR: In this article, the authors present a theoretical analysis along with the experimental validation study of a solar air heater of the second kind, which consists of a flat passage between two metallic plates through which the heat transfer fluid air is made to pass by some auxiliary means.

Journal ArticleDOI
TL;DR: In this article, the effect of number of tanks on the outlet temperature of hot water, has been analytically investigated; it has been assumed that the only heat exchange, taking place in the tanks is on account of flow of water.

Journal ArticleDOI
TL;DR: In this article, a study of using the waste heat from a window-type air-conditioner to heat water for domestic use was conducted in Malaysia, and the results showed that the water can be heated to about 90°C in about 312h and the room cooled faster when the water heating system is introduced than in the case when it functions normally.

Journal ArticleDOI
TL;DR: In this article, a complete small-scale power conversion facility with a two-phase liquid-metal MHD generator has been built and tested, and the working fluids were mercury and Refrigerant-113.

Journal ArticleDOI
TL;DR: In this article, it is shown that the effective temperature (ET) comfort index strongly depends upon humidity and should be utilized in regulating the automated air conditioning systems, which may lead to considerable energy savings.

Journal ArticleDOI
TL;DR: In this article, the optical and physical properties of spectrally selective solar absorbing coatings of black cobalt prepared by spray pyrolysis technique onto chemically brightened aluminium substrates were investigated.

Journal ArticleDOI
TL;DR: In this paper, a survey of current technologies consideration of air pollution effects and other factors, it was concluded that incineration of Tehran municipal solid waste may not be acceptable at the present time.

Journal ArticleDOI
TL;DR: In this article, the authors proposed an experiment where thermoelectrons emitted from two oxide cathodes in a specially devised vacuum tube are substituted for gas molecules in Maxwell's vessel of two portions, while the application of a magnetic field to acting Lorentz force on the thermolectrons offers the controling service of the "demon", so that electrons can only fly from one pole (A) to another (B) and a potential difference as well as an electric current can thus be gained.

Journal ArticleDOI
TL;DR: In this article, the authors present a rationale and methodology for planning, designing, installing and operating an energy monitoring and control system (EMCS) to realize energy savings, including direct energy savings as well as more effective utilization of limited manpower.

Journal ArticleDOI
TL;DR: The advantages and drawbacks of the two dimensional and three dimensional analysis of linear induction motors were attempted, therefore including a motor with low and high extremity effect.

Journal ArticleDOI
TL;DR: In this article, a quasi-three dimensional code for an MHD generator is developed for a seeded combustion plasma and the effects of leakage currents in the boundary layers and imperfect channel walls are included in the analysis.

Journal ArticleDOI
TL;DR: In this paper, a study is made for comparing the maximum seasonal energy yield obtainable by solar collectors for space heating application, different glazing combinations with glass and plastic as glazing materials are considered.

Journal ArticleDOI
TL;DR: In this article, the authors present an experimental investigation of current conduction phenomena in potassium seeded combustion products of liquefied-petroleum-gas and oxygen using matrix copper cathode with and without seed deposition.

Journal ArticleDOI
TL;DR: In this article, the authors investigated the amount of electrical power required, on top of thermal energy needs, in order to generate and deliver the cooling effect of solar absorption cooling systems as compared with the electrical power needs of equivalent vapour compression cooling systems.