Ultimate HVAC design with HAP,Excel,AutoCAD,Manuals(PART1)

Explore the two main thermal load types in hvac design—external loads from sun and outside sources, and internal loads generated inside the building, including people and lighting.

Calculate the thermal load for an etch vac system by determining exterior wall area and U value, then derive the total heat per hour; compare quick and resistive methods.

Learn to calculate exterior wall thermal load using the cooling load temperature difference, applying design time, orientation, latitude, and month, with corrections from LM, K, TR, and Tnode.

Compute door thermal loads using exterior-load calculations, applying area, thermal transmittance and cltd, then compare with the thermal resistivity method and adjust with latitude, location, and month factors.

Compute the exterior ceiling thermal load from area, U value, and cltd for worst-case July in New York. Contrast suspended and normal ceilings to show cltd impact on final q.

Calculate exterior glass loads for windows, doors, and skylights by selecting U values for single or multi-layer glass, considering curtains and glass percentage, then apply area and delta T.

Calculate the big glass solar load by multiplying glass area, shading coefficient, solar heat gain factor, and cooling load factor, using orientation, latitude, and design month to determine cooling needs.

Learn to calculate the interior lighting thermal load for HVAC using lamp power data or area-based watts per square foot, then convert to BTU/hr and apply fa, fs, and clf.

Calculate the office or factory thermal load by determining per-person sensible and latent heat, number of occupants, and cooling load factor to estimate total heat per hour.

Learn to calculate miscellaneous thermal loads for spaces by identifying devices from AutoCAD furniture, selecting representative appliances, and deriving sensible and latent loads from standard tables.

Compute partition thermal loads using interior wall area, thermal mass, and delta t, with scenarios for cold outside, worst-case, and overheated exterior conditions, yielding values such as 516.1 Btu/hr.

Compute the ventilation thermal load by separating sensible and latent components using temperature difference, CFM, and specific humidity, then apply a psychrometric chart to indoor and outdoor air data.

Learn essential AutoCAD commands to draw lines, polylines, arcs, circles, rectangles, and hatches, and edit drawings with trim, copy, move, mirror, and explode.

Master essential AutoCAD commands for measuring area and distance, creating arrays, managing blocks, editing objects, and adjusting scale, fillet, fill, rotate, color, and line styles.

Apply Excel to compute exterior wall loads from AutoCAD data, subtract windows and doors, and build a practical wall-load calculator for a one-floor house, preparing for cltd calculations.

Develop an Excel-based tool to automatically calculate wall thermal load for a house, modeling north, south, east, and west walls with U values, CLTV, LM, and k factor.

Calculate roof loads in excel by extending external ceiling loads and applying horizontal direction. Compute CLTV and transfer area from meters to feet to finalize the roof thermal load.

Calculate exterior doors thermal loads in Excel by measuring door lengths, entering areas and U-values, and deriving per-direction and total loads for an HVAC design lesson.

Compute exterior glass loads by grouping windows into large and small types and applying their area and glass transmission values. Derive total load from the exterior–interior temperature difference in Excel.

Compute exterior solar loads by grouping windows by orientation, applying shading coefficients, solar heat gain factors, and cooling load factors in Excel to determine total exterior thermal load.

Calculate interior lighting loads in Excel by converting room areas to lamp power density, applying in-use fractions, palace factor, and cooling load factor.

Learn Excel-based methods to calculate people thermal loads for interior design, including latent heat, sensible heat, and cooling load factors for various room types.

explains calculating interior miscellaneous loads in excel, detailing latin and sensible loads for kitchen devices, using cooling load factors and device operating hours.

Learn to calculate interior partition loads in Excel by combining wall area, height, and thermal transmissions to determine partition heat loads under varying outside temperatures.

Calculate the house ventilation load by separating latent and sensible components, using room-type cfm per person and per square, total cfm, and temperature and humidity differences.

Design and compute infiltration load in Excel, mirroring ventilation calculations with area, height, volume, CFM, and air changes per hour to determine total and sensible loads.

Explore the hub HVAC design software to perform thermal load and chiller capacity calculations, and set up a new project with Azure 2007 standards and SI units.

Enter location and geographic data, set summer and winter design temperatures using SI units and Ascher data, and use the psychometric chart to determine humidity.

Define atmospheric clearness number and its effect on solar radiation, with 0.85–1.15 range and default 1, and note ground reflectivity, soil conductivity, cooling months, time zone, and daylight saving.

Define weather parameters by selecting the city weather file from harp library, setting holidays, and generating data for dry bulb, wet bulb, and solar radiation to drive hvac energy calculations.

Define the load schedules to specify occupancy and thermal load profiles for different days and loads. Assign hourly profiles to months, weekdays, and holidays to optimize cooling and energy use.

Define load schedules using Kidwell types to capture occupancy and electrical loads; build hourly profiles for typical days, holidays, and varying electricity pricing.

Define exterior wall and roof thermal loads by configuring wall color, absorptivity, and layer properties to compute u-value. Create partition walls by equalizing inside and outside surface resistances.

Define window and door thermal loads by entering U values, shading coefficients, frame and glass details, and glazing gaps, then generate a combined report.

Explain how exterior shades reduce sun heat and the building's total thermal load. Define exterior shades by name, reveal depth, and set overhang and fin types.

Define spaces for the etch vac project in hop by entering room name, floor area, and height to compute volume, infiltration, and ventilation via the Ascher table.

define interior thermal loads by selecting fixture types (vented or unvented), inputting lighting, equipment, and people loads, using ASHRAE tables and Kidwell schedules to compute sensible and latent heat.

Define walls, windows, and doors for each space by entering directional and exposure data, thermal loads, and growth area, then assign window and door types and split walls as needed.

Define the project spaces by setting roof direction, exterior roof area, slope, skylights, and ceilings with multiple faces, then compute infiltration loads via air changes per hour and energy impacts.

Define the project spaces in hvac analysis through step 5 by evaluating conditioned, unconditioned, and slab floors, and calculating thermal loads, u-values, exposed perimeter, and insulation needs.

Define and modify partition spaces in an HVAC workflow by entering ceiling and wall partition areas, U values, and seasonal pressure differences, then adjust, rotate, and review input data.

Explore direct expansion HVAC systems, distinguishing package (window and roof) from split setups and detailing five split types—roof, world type, stand, recess, and concealed—via evaporator and freon air flow.

Explore how a chiller-type system uses water in the evaporator to absorb heat from refrigerant via heat exchange, driving a closed loop that cools air through the air handling unit.

Air terminals are duct-end devices delivering conditioned air; types include diffusers (swirl up to five meters, others up to four), edge grille, cut-door grills, jet, perforated, and disc valves.

Design air terminals for any application by applying standards for cubic feet per minute, velocity, and noise, calculating neck and face dimensions, and evaluating single, double, or multi-terminal layouts.

Learn the four duct types: supply, return, fresh air, and exhaust, and how materials (stainless steel, galvanized steel, textile, aluminum) and shapes (oval, rectangular, circular) influence performance.

design ducts by optimizing aspect ratio, cross-section, diffuser neck, and elbow geometry—using 45-degree elbows, radius rules, and duct reducers to minimize losses.

Design a complete duct system using the equal friction method, sizing ducts with the duct sizer, and applying volume dampers, fire dampers, and smoke dampers in a practical example.

Discover chiller system types by compressor type—centrifugal, reciprocating, and rotary—and condenser cooling options, air-cooled and water-cooled, with notes on efficiency, capacity, and maintenance for selection.

Design the chiller piping and pumping system by calculating pipe diameter, gallons per minute, water velocity, and head losses, then sizing the pipe with pipe sizer.

Explore how variable air volume systems control room airflow via thermostats and Palins control regulates chiller to fan coil unit flow with three way valve and two way valves.