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  • The experiment was conducted at Mushroom Production unit at SG College of agriculture and research station, Jagdalpur during July 2017-January 2018 under controlled condition. Fresh culture of Agaricus bisporus S-11 was maintained on potato dextrose agar. Compost was prepared by short method of composting and cultivation trials of Agaricus bisporus S11 was carried out in a closed room provided with air conditioner as source of cooling.

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  • Kerala is the region with high humidity and comparatively low solar radiation, there is much scope of uneven and uncontrolled drying of copra. Hence, an attempt was made to develop a sophisticated and advanced forced convection solar dryer. Evacuated tube collector (ETC) was used to generate hot air and used to dry coconuts. It consists of three units: evacuated tube collector, blower and drying chamber. Coconuts (Cocos nucifera) were dried at full load condition in order to evaluate the performance of the developed solar dryer.

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  • Exact prediction of the cooling and heating load, proper sizing of the heat ventilation airconditioning (HVAC) system and optimal control of the HVAC systems are important to minimize energy consumption. Calculation of thermal load of building is very essential to find exact air-conditioning equipment and air handling unit, to achieve comfort operation and good air distribution in the air-conditioned zone. This project Cooling load estimation for a Reading Hall of CAET, JAU presents by using TETD method. The Reading Hall considered in this study is situated in Junagadh (70.45°E, 21.

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  • An experimental investigation on the performance of a proposed hybrid desiccant based air conditioning system referred as HDBAC is introduced in this paper. HDBAC is mainly consisted of a liquid desiccant dehumidification unit integrated with a vapor compression system (VCS). The VCS unit has a cooling capacity of 5.27 kW and uses 134a as refrigerant. Calcium chloride (CaCl2) solution is used as the working desiccant material. HDBAC system is used to serve low sensible heat factor applications.

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  • The purpose of this manual is to provide the reader with a fundamental understanding of controls and how they are applied to the many parts of heating, ventilating, and air conditioning systems in commercial buildings. Many aspects of control are presented including air handling units, terminal units, chillers, boilers, building airflow, water and steam distribution systems, smoke management, and indoor air quality.

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  • Trigeneration. The combination of gas engines with absorption chillers is an optimal solution for generating air conditioning and/or refrigeration. The waste heat from the mixture intercooler, the engin oil, the engine cooling water, and the exhaust gas serves as drive energy for the chillers. Combining a cogeneration plant unit with an absorption refrigeration system allows utilization of seasonal excess heat for cooling.

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  • Functions of an air conditioner: A. temperature control B. air conditioning C. odor removal D. germicidal treatment E. noise control F. air motion G. relative humidity II. Spaces: Auditoria Commercial offices 3. Apartments 4. School class rooms Motels Example: In an auditorium, the three most important functions of an air conditioner are to control the temperature, to remove odour and to control noise

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  • IN BOTH NATURAL AND AGRICULTURAL CONDITIONS, plants are frequently exposed to environmental stresses. Some environmental factors, such as air temperature, can become stressful in just a few minutes; others, such as soil water content, may take days to weeks, and factors such as soil mineral deficiencies can take months to become stressful. It has been estimated that because of stress resulting from climatic and soil conditions (abiotic factors) that are suboptimal, the yield of field-grown crops in the United States is only 22% of the genetic potential yield (Boyer 1982).

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  • I would like to recognize those who have helped to bring this project to fruition, for it is through the help of many different individuals that the conception and completion of this work was possible. Foremost, I acknowledge the National Science Foundation (grant no. 9912271) for funding this project. I would like to express my gratitude to my husband, Greg Wilson, whose support and encouragement kept me going daily. Greg helped in so many ways, from proofreading my writing and trouble- shooting my ideas to calming me down and installing an air-conditioning unit in my office.

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  • Like most metropolitan areas on the U.S.–Mexico border, Paso del Norte, comprised principally of Ciudad Juárez, Chihuahua, and El Paso, Texas, has experienced exceptionally rapid population and economic growth during the last several decades. 1 Between 1990 and 2000, Ciudad Juárez’s population grew by about 50% (from 0.8 million to 1.2 million), while El Paso’s population grew by about 16% (from 0.6 million to 0.7 million), rates approximately twice those for Mexico and the United States (Desarrollo Econόmico de Ciudad Juárez 2002, Economist 2001).

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  • Indoor air pollution poses many challenges to the health pro- fessional. This booklet offers an overview of those challenges, focusing on acute conditions, with patterns that point to par- ticular agents and suggestions for appropriate remedial action. The individual presenting with environmentally associated symptoms is apt to have been exposed to airborne substances originating not outdoors, but indoors. Studies from the United States and Europe show that persons in industrial- ized nations spend more than 90 percent of their time indoors1.

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  • The USFS Forest Inventory and Analysis (FIA) program seeks to assess the condition and trend of the forests of the U.S. FIA recently assumed responsibility for all former Forest Health Monitoring program (FHM) plot work on a national level, and is currently active in 32 states. Lichen community monitoring was included in FIA in order to address key assessment issues such as the impact of air pollution on forest resources, spatial and temporal trends in biodiversity, and the sustainability of timber harvesting.

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  • The forced air HAC system is located off the dining area with a single return grille located in a panel of the HAC system closet. The HAC system consists of a 10.6 kW air conditioning unit and a furnace with a power input of 22.6 kW and output of 18.2 kW. The design airflow rate of the furnace fan is 470 L s -1 . A thermostat controls system operation, but the air distribution fan can be operated continuously if desired. There are local exhaust fans in the bathrooms and kitchen and a whole-house exhaust fan in the...

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  • There are 4 million miles of roads in the United States. One hundred years ago, roads were primarily unpaved and had half the number of miles of the present U.S. road system. As the system grew, roads became wider and more complex structurally to provide for more and heavier traffic. New construction technology and greater structural stability were needed to improve the road system. All phases of road development—from construction and use by vehicles to maintenance—affect physical and chemical soil conditions, water flow, and air and water quality.

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  • SUBCOURSE OD1750 EDITION A REFRIGERATION AND AIR CONDITIONING IV (EQUIPMENT COOLING) ..REFRIGERATION AND AIR CONDITIONING IV (EQUIPMENT COOLING) Subcourse OD1750 Edition A United States Army Combined Arms Support Command Fort Lee, VA 23801-1809 14 Credit Hours INTRODUCTION This subcourse is the last of four subcourses devoted to basic instruction in refrigeration and air conditioning.

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  • The scope of this subcourse takes in unit components of the absorption system, including their functions and maintenance; water treatment methods and their relationship to centrifugal systems; centrifugal water pumps and electronic control systems, including the relationship of amplifier, bridge and discriminator circuits to electronic controls. The subcourse consists of three lessons. Lesson 1. 2. 3. Direct Expansion and Absorption System. Centrifugal Systems and Water Treatment. Centrifugal Water Pumps and Electronic Control Systems.

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  • This is a thorough revision of the definitive, classic text for any level course on refrigeration, refrigeration and air conditioning, and environmental control in buildings. It is an equipment-oriented textbook that applies theoretical results of engineering theories to refrigeration and air conditioning engineering problems. This enables the student to understand both common and uncommon problems in designing, selecting and applying air conditioning and refrigeration components and systems.

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  • This unit describes some of the ways that a laboratory can deal with the constant threat of microbial contamination in cell cultures. Microorganisms are ubiquitous. Bacteria can be isolated from nearly any surface including inanimate objects and human skin. Fungal spores and bits of vegetative hyphae drift into a laboratory from air conditioning ducts and open doors. Mycoplasma infections most frequently originate from improperly sterilized media or serum.

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  • Source: HANDBOOK OF MECHANICAL ENGINEERING CALCULATIONS SECTION 16 HEATING, VENTILATING, AND AIR CONDITIONING ECONOMICS OF INTERIOR CLIMATE CONTROL 16.2 Equations for Heating, Ventilation, and Air-Conditioning Calculations 16.2 Required Capacity of a Unit Heater 16.58 Determining Cooling-Tower Fan Horsepower Requirements 16.12 Choosing an Ice Storage System for Facility Cooling 16.13 Annual Heating and Cooling Energy Loads and Costs 16.22 Heat Recovery Using a Run-Around System of Energy Transfer 16.24 Rotary Heat Exchanger Energy Savings 16.

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  • Source: HANDBOOK OF MECHANICAL ENGINEERING CALCULATIONS SECTION 12 REFRIGERATION Refrigeration Required to Cool an Occupied Building 12.1 Determining the Displacement of a Reciprocating Refrigeration Compressor 12.4 Heat-Recovery Water-Heating from Refrigeration Units 12.6 Computing Refrigerating Capacity Needed for Air-Conditioning Loads 12.12 Analysis of a Compound CompressionRefrigeration Plant with a WaterCooled Intercooler and Liquid Flash Cooler 12.47 Computation of Key Variables in a Compression Refrigeration Cycle with Both Water- and Flash-Intercooling 12.

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