Rules Thumb Guidelines Building Services Pdf 17
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How to Use Rules of Thumb for Building Services Design
Building services design is a complex and multidisciplinary process that involves many factors such as space, cost, performance, environmental impact, aesthetics and functionality. It can be challenging to find the optimal solution for each project, especially in the early stages of design when information is limited and uncertainty is high. That's why many building services engineers use rules of thumb as a helpful tool to guide their decision making and estimation.
Rules of thumb are general principles or methods derived from practice and experience, rather than precise theory. They are not intended to be accurate for every situation, but they can provide useful guidance for approximately calculating a value, setting outline targets or rapidly comparing different options. Rules of thumb can also help to communicate design concepts and criteria to clients, stakeholders and other design team members.
However, rules of thumb should not be used blindly or without critical thinking. They should be applied with caution and judgement, taking into account the specific context and requirements of each project. They should also be updated and verified regularly with more detailed analysis and data as the design progresses. Rules of thumb are not a substitute for professional expertise and knowledge, but rather a complement to them.
Where to Find Rules of Thumb for Building Services Design
There are many sources of rules of thumb for building services design, ranging from books and publications to online databases and tools. Some examples are:
Rules of Thumb - Guidelines for building services (5th Edition): This is a publication by BSRIA (Building Services Research and Information Association) that provides a valuable source of approximate engineering design, environmental performance and project cost data for building services projects. It covers topics such as space and weight requirements, energy consumption, carbon emissions, water usage, ventilation rates, lighting levels, acoustic criteria and cost benchmarks. It also includes examples of typical building types and systems[^1^].
Rules of Thumb - Archive: This is an online collection of rules of thumb for building services design that was created by the Internet Archive. It contains scanned copies of various publications that date back to 2003 or earlier. Some of the publications are out of print or hard to find, so this collection can be a useful resource for historical reference or comparison[^2^].
Rules of Thumb - Studocu: This is an online platform that allows students and professionals to share and access study materials for various subjects and courses. It includes a document that summarizes some of the rules of thumb from the BSRIA publication mentioned above. It can be a handy reference for quick access or revision[^3^].
How to Use Rules of Thumb for Building Services Design
Rules of thumb can be used for different purposes and at different stages of building services design. Some examples are:
Briefing: Rules of thumb can help to establish the initial scope and objectives of the project, such as the size, function, quality and budget of the building. They can also help to identify the key design parameters and constraints that need to be considered, such as site conditions, planning regulations, client requirements and user expectations.
Feasibility studies: Rules of thumb can help to evaluate the feasibility and viability of different design options or alternatives, such as different building forms, orientations, layouts, materials or systems. They can also help to estimate the potential benefits and drawbacks of each option in terms of performance, cost, environmental impact and risk.
Concept design: Rules of thumb can help to develop the concept design by providing approximate values for key design variables, such as heating, cooling and electrical loads, ventilation rates, lighting levels, water demand and supply, etc. They can also help to select the most appropriate building services systems and components based on their characteristics, advantages and disadvantages.
Detailed design: Rules of thumb can help to refine the detailed design by providing more accurate values for specific design calculations or simulations, such as pipe sizes, duct sizes, pump capacities, fan powers, valve settings, etc. They can also help to check the validity and consistency of the design assumptions and results.
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