Fuses Chapter 12 - Physics Of Conductors And Insulators Normally, the ampacity rating of a conductor is a circuit design limit never to be intentionally exceeded, but there is an application where ampacity exceedance is expected: What is a Fuse? A fuse is nothing more than a short length of wire designed to melt and separate in the event of excessive current. Fuses are always connected in series with the component s to be protected from overcurrent, so that when the fuse blows opens it will open the entire circuit and stop current through the component s.
Expertise Expertise Our Expertise allows us to work effectively at both the specification and architectural level of systems and machines, whilst considering the implications to the individual components and subsystems they encompass.
Our multi-skilled team are versed in the optimisation of designs for durability, ease of manufacturing and production costs. We have a proven track record developing products into production, using a combination of experience, cutting edge design and modern multi-physics analysis tools.
We routinely advise our clients on opportunities for capturing the intellectual property developed as part of our work, leading to improved product strength in the marketplace.
A few examples of the most recent projects are: Design upgrade of a 2. Products span from small-scale analysis and evaluation, through to large-scale projects requiring design, prototyping and testing.
Powertrain Technology, with a breadth of engine and electrical machines design and drive cycle simulation experience, is able to offer a range of services including: Design and analysis of downsized engines Consultation and implementation of emission reduction stratagies, with specialist knowledge of high EGR engines Integration of engines within hybrid powertrain Common electrical devices used in physics of electric motors and battery storage Engine, battery pack and cabin thermal management Drive cycle optimisation of hybrid powertrains Micro Combined Heat and Power mCHP Specification, assessment, design, procurement, development Micro combined heat and power units are set to become an important part of the future energy mix, offering a combination of distributed generation capacity and very high efficiency.
Using our skills in production engine design and modelling both thermodynamic and mechanical in combination with our track record in selection and the design of electrical machines we are able to construct mathematical models of the total system.
This provides a comprehensive understanding of the complex loadings and vibrations emanating from the combination of reciprocating and rotating machinery.
Performance and thermal analysis of the total system enables the engineering of products with an optimum balance of electrical and thermal heat generation for minimum cost. Control strategies for integration with battery packs and energy balancing can be developed to maximise system efficiency.
Test rigs Bespoke solutions for product development, from proof of concept to durability testing Powertrain Technology has a wealth of experience in the specification, design, procurement, and operation of a variety of rigs for proof of concept, product development and sign-off, as well as durability qualification.
A few examples of our work are: High fidelity Bearing development, with either oil or water lubrication, capable of replicating the bearing load history originated by engine combustion Fast acting, high acceleration valvetrain, for proof of concept, model correlation and conformance to durability targets Rigs for testing of plural stage pumps for multiphase fluids, to confirm the performance of the machine to comply with the design specification, collect data for model validations and assess durability A critical part of rig testing is the definition of the minimum set of features the rig needs to appropriately replicate the operating conditions which a machine, subsystem or component will experience in the field, as well as the instrumentation needed to monitor the operation and characterise the performance of the test subject.
PTL draw on their extensive experience in system modelling, development and validation to create rig testing solutions which minimise development cost time whilst maximising the technical return of testing activities.
Contact us for more information Bearings Design, analysis, procurement and testing for all applications From basic unit load and material specification, through to full hydrodynamic modelling and rig testing, Powertrain Technology has a breadth of knowledge and project experience for a range of bearing applications.
This expertise, together with close working relationships with bearing suppliers allows PTL to offer a range of bearing related services. Development of bespoke water lubricated bearings for a multiphase pump Specification of bearings for a high pressure single cylinder research engine Design of a bearing test rig for a technical research consortium Failure investigation and design rectification of an application of taper roller bearing for Stirling engine for a mCHP system Pumps Multi-phase pump design for the oil and gas industry PTL routinely works with suppliers on the specification, sizing and selection of volumetric and centrifugal pumps for the operation, lubrication and cooling of engines and other machinery.
Powertrain Technology has recently undertaken a project within the oil and gas industry to produce a multi-phase pump, operating within an extremely harsh environment. Design and analysis of equipment for operation in hostile environments Design and simulation of a screw pump, including rotor tooth profile optimisation Stacking and work balancing of several screw pump stages for the achievement of heads exceedin bar Development of bespoke hydro-mechanical software to support the project activities Procurement and development of prototypes for field trial sign off Drivelines Powertrain to vehicle integration and simulation Integration of powertrain and drivetrain is extremely important with regards to total vehicle dynamics, efficiency and NVH.
With hybridisation further adding to the complexity of drivetrains, the design and analysis required to produce a successful product within budget is only increasing the demands on simulation effort. At Powertrain Technology we have a range of skills and experience including: Vehicle and driveline dynamic drive cycle simulation Design and integration of driveline components with vehicle packages Driveline test facilities through our partners SwRI Energy storage devices Energy storage and management solutions With increasing trends towards off grid and local generation to meet energy needs, as well as the predicted increase in electric vehicles and the associated infrastructure changes required, a whole range of approaches and solutions have been presented to add to a portfolio of energy generation and energy storage offerings.
At Powertrain Technology we have recently used our knowledge base in thermodynamics and our simulation expertise to examine some of these proposals for clients, including: Compressed air as an energy storage medium Energy generation benefits of a novel engine architecture Exhaust heat recovery for energy generation and fast warm-up PTL has recently developed a fast and accurate algorithm for the screening, sizing and optimisation of energy storage system which also identifies the best strategy for energy storage, reuse and balancing — Engineering solutions can then be selected through quantifiable energy and financial returns.Some of the most common devices and meters to be used is described below.
1) RESISTORS Resistors are devices used to give a desired value of resistance. They are inserted into a circuit in order to lower the current of to produce a desired voltage drop.
1. The purpose of every circuit is to supply the energy to operate various electrical devices. These devices are constructed to convert the energy of flowing charge into other forms of energy (e.g., light, thermal, sound, mechanical, etc.). Use complete sentences to describe the energy conversions that occur in the following devices.
a. Powertrain Technology offers services in advanced electrical machines for a variety of industries, including automotive, oil and gas, aerospace and energy generation.
Experiment #7″Electric Devices and Meters ” Physics – PHA – PT 2 E Santos, Nickerson Jeff F. February 27, Experiment No. 7 Electric Devices And Meters OBJECTIVE: To familiarize the students with the different types of electric devices and meters.
The charge-coupled device was invented in in the United States at AT&T Bell Labs by Willard Boyle and George E. Smith. The lab was working on semiconductor bubble memory when Boyle and Smith conceived of the design of what they termed, in their notebook, "Charge 'Bubble' Devices".
The device could be used as a shift . To familiarize the students with the different types of electric devices and meters. FOREWORD: In order to perform experiments dealing with electric circuits, you must become familiar first with the devices and meters needed for such experiment.
Some of the most common devices and meters to be used is described below.