نتایج جستجو برای: گرما و سرما cchp

تعداد نتایج: 760943  

2011

In this work we study the effect of some electrical prosperities on synthetic rubber reinforced with carbon black diluted in heptanes with concentrations from 0.2% gm/mole to 2.0% gm/ mole in temperatures range (100, 150, 200, 250, 300) C associated with amount weight of black carbon 5wt% added to the diluted rubber. The results of electrical properties measurement of Buna rubber reinforced wit...

Journal: :Energies 2022

This paper proposes a combined cooling, heating and electric power (CCHP) system based on demand side response. In order to improve the economy of system, two-stage optimal scheduling scheme is proposed with goal minimizing total operating cost maximizing user satisfaction. The operation was divided into two optimization problems, including supply side. first stage, satisfaction, from new point...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه صنعت آب و برق (شهید عباسپور) - دانشکده مهندسی مکانیک 1390

امروزه با توجه به ویژگی های منحصر به فرد سیستم های تولید همزمان برق، حرارت و سرما در مقیاس خیلی کوچک (mcchp) نظیر راندمان بالا، کاهش آلودگی های زیست محیطی و تاثیرگذاری عمده در کاهش تلفات سیستم های انتقال، این سیستم ها به سرعت در واحدهای مسکونی در حال افزایش می باشند. اکثر مطالعات انجام شده در زمینه طراحی سیستم های تولید همزمان از نقطه نظر اقتصادی بدون در نظر گرفتن انرژی مصرفی و مسائل زیست محیطی...

Journal: :IEEE Access 2021

Internet data centers are growing rapidly in recent years and they operate with intensive energy activity. Combined cooling, heating power (CCHP) brings new opportunities for reducing the electricity cost internet centers. The main objective of this study is to optimize resources scheduling center coupled nets considering involvement CCHP different demand response techniques. In paper, proposed...

Journal: :Clean energy 2023

Abstract As the basis for study, this manuscript was written at a time when energy crisis is affecting most parts of world and especially prevailing rampant electricity in developing countries. result, 50 combined cooling, heating power (CCHP) systems studies were reviewed, which included internal combustion engine (ICE), Stirling engine, biomass, micro turbine, solar biogas, photovoltaic (PV) ...

2005
R. Z. Wang R. G. Oliveira

This paper presents the achievements in solid sorption refrigeration prototypes obtained since the interest in sorption systems was renewed at the end of the 1970s. The applications included are ice making and air conditioning. The latter includes not only cooling and heating, but also dehumidification by desiccant systems. The prototypes presented were designed to use waste heat or solar energ...

In this article a CCHP system has been proposed for recovering waste heat of PEM fuel cell and this system can be used for residential applications. Main components of the system are PEM fuel cell, absorption chiller, fuel processor and heat storage tank. Electrochemical equations of PEM have been modeled by MATLAB and the chiller, fuel processor and boiler have been modeled by EES. In addition...

هدف از این تحقیق ارزیابی جوانه‏زنی ژن‌نمون (ژنوتیپ)‏های مختلف کنجد در واکنش به دما بود. با استفاده از دماهای مهم (کاردینال) یعنی کمینه، بهینه و بیشینه شاخص‏های تحمل به دمای بالا و پایین تعیین و ژن‌نمون‏های مختلف از این نظر ارزیابی شدند. به این منظور آزمایش جوانه­زنی با چهار تکرار 50 بذری در درون اتاقک (انکوباتور)های رشد با دماهای ثابت 10، 15، 20، 25، 30، 35، 40 و 45 درجة سلسیوس روی نه ژن‌نمون ک...

2004
B. Moshiri

In this paper, utilization of clustering algorithms for data fusion in decision level is proposed. The results of automatic isolated word recognition, which are derived from speech spectrograph and Linear Predictive Coding (LPC) analysis, are combined with each other by using fuzzy clustering algorithms, especially fuzzy k-means and fuzzy vector quantization. Experimental results show that the ...

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