फंडामेंटल एंड इंजीनियरिंग
एचवीएसी वायु मात्रा गणना
एक एचवीएसी प्रणाली के लिए हवा की मात्रा की गणना वातानुकूलित स्थान में समझदार गर्मी से की जाती है। ठेठ हीटिंग और कूलिंग यूनिट के लिए, गणना ठंडा करने के लिए है क्योंकि इसे गर्म करने की तुलना में एक स्थान को ठंडा करने के लिए अधिक हवा की आवश्यकता होती है। यदि वातानुकूलित स्थान को सीएफएम की एक दी गई मात्रा के साथ ठीक से ठंडा किया जा सकता है, तो सीएफएम की समान मात्रा के साथ अंतरिक्ष को सही ढंग से गर्म किया जा सकता है।
थर्मल भंडारण
Thermal energy may be stored in three main ways: – Sensible Storage – Latent Storage – Thermo-Chemical Storage. In addition, the two common thermal storage strategies employed are: – Load Levelling Strategy – Load Shifting Strategy
Hydropneumatic Tank Sizing
Hydropneumatic tanks are primarily used in a domestic water system for draw down purposes when the pressure booster system is off on no-flow shutdown (NFSD). The NFSD circuitry turns the lead pump off when there is no demand on the system. While the system is off in this condition, the hydropneumatic tank will satisfy small demands on the system. Without the tank, the booster would restart upon the slightest call for flow such as a single toilet being flushed or even a minute leak in the piping system. Hydropneumatic tank sizing is dependent on two factors: – Length of time you wish the pumps to remain off in a no-flow situation. – The tank location in relation to the pressure booster.
Pump Sizing Core Concepts
Pump sizing involves matching the flow and pressure rating of a pump with the flowrate and pressure required for the process. The mass flowrate of the system is established on the process flow diagram by the mass balance. Achieving this mass flowrate requires a pump that can generate a pressure high enough to overcome the hydraulic resistance of the system of pipes, valves, and so on that the liquid must travel through. This hydraulic resistance is known as the system head.
Hvac Equations (U.S./Metric)
The heating, ventilation, and air conditioning (HVAC) equations. In both U.S. and Metric units.
Expansion Tanks
How does Boyle’s law relate to sizing expansion tanks in domestic hot water systems? what size expansion tank is required?
Expansion Tank Sizing Formulas
Expansion tanks are a necessary part of all closed hydronic systems to control both minimum and maximum pressure throughout the system. A comprehensive review of tank types and sizing procedure for expansion tanks.
Primary Secondary Pumping
– What is Primary-Secondary Pumping? – PRIMARY-SECONDARY BASICS. – PRIMARY-SECONDARY RULES, DEFINITIONS. WHEN TWO PIPING CIRCUITS ARE INTER-CONNECTED, FLOW IN ONE WILL CAUSE FLOW IN THE OTHER, T0 A DEGREE DEPENDING UPON THE PRESSURE DROP IN THE PIPING COMMON T0 BOTH.
4-पाइप और 2-पाइप हीटिंग और कूलिंग प्लांट
4-पाइप हीटिंग और कूलिंग प्लांट में केंद्रीय हीटिंग और कूलिंग उपकरण दोनों होते हैं और यह चार पाइपों (एक हीटिंग वॉटर सप्लाई, एक हीटिंग वॉटर रिटर्न, एक ठंडा वॉटर सप्लाई और एक) के माध्यम से इमारत में एक साथ हीटिंग पानी और ठंडा पानी पहुंचाने में सक्षम है। ठंडा पानी वापसी)। इमारत के भीतर हीटिंग और कूलिंग उपकरण जो 4-पाइप प्रणाली से जुड़े हैं, उनमें चार पाइप कनेक्शन होंगे, जब तक कि उपकरण केवल हीटिंग या केवल कूलिंग प्रदान नहीं करता है। इस मामले में, उपकरण में केवल दो पाइप कनेक्शन होंगे।
Constant Air Volume (CAV) Systems
HVAC air systems can be either centralized or decentralized. Centralized air systems receive their cooling and heating energy from a remote central plant. Decentralized HVAC air systems contain the central heating and cooling plant equipment within the air system itself. HVAC air systems can also be constant air volume (CAV) or variable air volume (VAV). CAV systems deliver constant supply airflow at a variable temperature. VAV systems deliver variable supply airflow at a constant temperature. CAV and VAV air systems can be further subdivided into systems that condition a single temperature zone and systems that condition multiple temperature zones.
मानकों का अनुपालन
HVAC Load Estimation: Internal Heat Gain from Infrastructure Components (Pipes, Ducts, Tanks, AC Motors)
Complete guide to internal heat gain from HVAC infrastructure components including pipes, ducts, tanks, and motors using Carrier standards for accurate load estimation and system design.
HVAC Load Estimation: Internal Heat Gain from Equipment and Appliances
Complete guide to internal heat gain from equipment and appliances in HVAC load estimation using ASHRAE, CIBSE, and Carrier standards for accurate system sizing and equipment integration.
HVAC Load Estimation: Internal Heat Gain from Lighting
Complete guide to internal heat gain from lighting systems in HVAC load estimation using ASHRAE, CIBSE, and Carrier standards for accurate system sizing and lighting-HVAC integration.
HVAC Load Estimation: Glazing U-Values and Shading Coefficient (SC) Values
Complete guide to glazing U-values and shading coefficients for HVAC load estimation using ASHRAE, CIBSE, and Carrier standards for accurate fenestration thermal and solar analysis.
HVAC Load Estimation: Construction U-Values for Walls, Roofs, and Partitions
Complete guide to construction U-values for walls, roofs, and partitions in HVAC load estimation using ASHRAE, CIBSE, and Carrier standards for accurate thermal analysis.
HVAC Psychrometric Processes: Charts, Calculations, and Air Treatment Applications
Complete guide to psychrometric processes in HVAC design covering sensible/latent cooling, heating, humidification, dehumidification, and evaporative cooling using ASHRAE and CIBSE standards.
HVAC Cooling and Heating Load Estimation: Outdoor Conditions and Climate Data
Comprehensive guide to outdoor climate data for HVAC load estimation using ASHRAE, CIBSE, and Carrier standards. Essential weather parameters for accurate system sizing and energy analysis.
HVAC System Selection and Design Strategy: Professional Standards and Guidelines
Comprehensive guide to HVAC system selection and design strategy using ASHRAE, SMACNA, and Carrier standards. Learn professional methodologies for optimal system selection and performance optimization.
HVAC Design Equations: Air, Fan, Pump, and Hydronic System Calculations
Comprehensive guide to essential HVAC design equations covering air, fan, pump, and hydronic system calculations. Reference standards from SMACNA, ASHRAE, and Carrier for professional engineering applications.
अंकीय उपकरण और संसाधन
साइकोमेट्रिक प्रोग्रामिंग फ़ंक्शंस
ibrary of psychrometric functions to calculate thermodynamic properties of air for Python, C, C#, Fortran, JavaScript and VBA/Excel
कैरियर हैप सॉफ्टवेयर
Carrier’s Hourly Analysis Program is two powerful tools in one package – versatile features for designing HVAC systems for commercial buildings AND powerful energy analysis capabilities for comparing energy consumption and operating costs of design alternatives.
ट्रेस 700 सॉफ्टवेयर
TRACE 700 enables building designers to optimize the building, system and equipment designs on the basis of energy utilization and life-cycle cost. The Trane software for TRACE 700 facilitates analysis of the energy and economic effects of virtually any chiller plant configuration by allowing users to manipulate a wide range of variables and create a profile of their specific building.
Download EVAP-COND 5.0: The Ultimate Heat Exchanger Simulation Tool for HVAC Engineers
Whether you’re designing a new heat exchanger, optimizing an existing system, or researching alternative refrigerants, EVAP-COND provides the detailed analysis capabilities needed to make informed decisions. I encourage all HVAC engineers and researchers to explore this powerful simulation tool and experience firsthand how it can transform your approach to heat exchanger design.
हीट ट्रांसफर पाठ्यपुस्तक डाउनलोड करें
यह पुस्तक जूनियर, सीनियर और प्रथम वर्ष के स्नातक छात्रों के लिए है। और उन लोगों के लिए जो विषय को स्वयं सीखना चुनते हैं, और अभ्यास करने वाले इंजीनियरों के लिए जो इसे संदर्भ के रूप में उपयोग करते हैं। चाहे कोई अकेले पढ़ता हो या किसी कक्षा के साथ, सीखने का मतलब है खुद से सवाल पूछना, फिर जवाब देना।